1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/*
flext - C++ layer for Max/MSP and pd (pure data) externals
Copyright (c) 2001-2003 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
/*! \file flsupport.cpp
\brief flext support functions and classes.
*/
#include "flext.h"
#include <stdio.h>
#include <stdarg.h>
const t_symbol *flext::sym_float = NULL;
const t_symbol *flext::sym_symbol = NULL;
const t_symbol *flext::sym_bang = NULL;
const t_symbol *flext::sym_list = NULL;
const t_symbol *flext::sym_pointer = NULL;
const t_symbol *flext::sym_int = NULL;
#if FLEXT_SYS != FLEXT_SYS_JMAX
const t_symbol *flext::sym_anything = NULL;
#endif
#if FLEXT_SYS == FLEXT_SYS_PD
const t_symbol *flext::sym_signal = NULL;
#endif
int flext::Version() { return FLEXT_VERSION; }
const char *flext::VersionStr() { return FLEXT_VERSTR; }
void flext::Setup()
{
static bool issetup = false;
if(issetup)
return;
else issetup = true;
#if FLEXT_SYS == FLEXT_SYS_PD
sym_anything = &s_anything;
sym_pointer = &s_pointer;
sym_float = &s_float;
sym_symbol = &s_symbol;
sym_bang = &s_bang;
sym_list = &s_list;
sym_signal = &s_signal;
#elif FLEXT_SYS == FLEXT_SYS_MAX
sym_int = gensym("int");
sym_float = gensym("float");
sym_symbol = gensym("symbol");
sym_bang = gensym("bang");
sym_list = gensym("list");
sym_anything = gensym("anything");
#elif FLEXT_SYS == FLEXT_SYS_JMAX
sym_int = fts_s_int;
sym_float = fts_s_float;
sym_symbol = fts_s_symbol;
sym_bang = fts_s_bang;
sym_list = fts_s_list;
sym_pointer = fts_s_pointer;
#else
#endif
#ifdef FLEXT_THREADS
thrid = GetThreadId();
StartHelper();
#endif
}
/////////////////////////////////////////////////////////
// overloaded new/delete memory allocation methods
//
/////////////////////////////////////////////////////////
void *flext_root::operator new(size_t bytes)
{
bytes += sizeof(size_t);
#ifdef FLEXT_DEBUG
if(bytes > 32000)
post("flext - warning: excessive memory allocation of %i bytes",bytes);
#endif
#if FLEXT_SYS == FLEXT_SYS_JMAX
char *blk = (char *)::fts_malloc(bytes);
#else
char *blk = (char *)::getbytes(bytes);
#endif
*(size_t *)blk = bytes;
return blk+sizeof(size_t);
}
void flext_root::operator delete(void *blk)
{
char *ori = (char *)blk-sizeof(size_t);
#if FLEXT_SYS == FLEXT_SYS_JMAX
fts_free(ori);
#else
size_t bytes = *(size_t *)ori;
::freebytes(ori,bytes);
#endif
}
void *flext_root::NewAligned(size_t bytes,int bitalign)
{
const size_t ovh = sizeof(size_t)+sizeof(char *);
const unsigned long alignovh = bitalign/8-1;
bytes += ovh+alignovh;
#if FLEXT_SYS == FLEXT_SYS_JMAX
char *blk = (char *)::fts_malloc(bytes);
#else
char *blk = (char *)::getbytes(bytes);
#endif
char *ablk = reinterpret_cast<char *>((reinterpret_cast<unsigned long>(blk)+ovh+alignovh) & ~alignovh);
*(char **)(ablk-sizeof(size_t)-sizeof(char *)) = blk;
*(size_t *)(ablk-sizeof(size_t)) = bytes;
return ablk;
}
void flext_root::FreeAligned(void *blk)
{
char *ori = *(char **)((char *)blk-sizeof(size_t)-sizeof(char *));
#if FLEXT_SYS == FLEXT_SYS_JMAX
fts_free(ori);
#else
size_t bytes = *(size_t *)((char *)blk-sizeof(size_t));
::freebytes(ori,bytes);
#endif
}
// ------------------------------------------
/*! \todo there is probably also a shortcut for Max and jMax
\todo size checking
*/
void flext::GetAString(const t_atom &a,char *buf,int szbuf)
{
#if FLEXT_SYS == FLEXT_SYS_PD
atom_string(const_cast<t_atom *>(&a),buf,szbuf);
#else
// no checking for size here
if(IsSymbol(a)) STD::sprintf(buf,GetString(a));
else if(IsFloat(a)) STD::sprintf(buf,"%f",GetFloat(a));
else if(IsInt(a)) STD::sprintf(buf,"%i",GetInt(a));
else *buf = 0;
#endif
}
unsigned long flext::AtomHash(const t_atom &a)
{
#if FLEXT_SYS == FLEXT_SYS_MAX || FLEXT_SYS == FLEXT_SYS_PD
return ((unsigned long)a.a_type<<28)^*(unsigned long *)&a.a_w;
#else
#error Not implemented
#endif
}
unsigned int flext::FoldBits(unsigned long h,int bits)
{
if(!bits) return 0;
const int hmax = (1<<bits)-1;
unsigned int ret = 0;
for(unsigned int i = 0; i < sizeof(h)*8; i += bits)
ret ^= (h>>i)&hmax;
return ret;
}
int flext::Int2Bits(unsigned long n)
{
int b;
for(b = 0; n; ++b) n >>= 1;
return b;
}
void flext_root::post(const char *fmt, ...)
{
#ifdef FLEXT_THREADS
static flext::ThrMutex mutex;
mutex.Lock();
#endif
va_list ap;
va_start(ap, fmt);
#if FLEXT_SYS == FLEXT_SYS_MAX
char buf[1024]; // \TODO this is quite unsafe.....
vsprintf(buf, fmt, ap);
::post(buf);
#else
vfprintf(stderr, fmt, ap);
::post("");
#endif
va_end(ap);
#ifdef FLEXT_THREADS
mutex.Unlock();
#endif
}
void flext_root::error(const char *fmt,...)
{
#ifdef FLEXT_THREADS
static flext::ThrMutex mutex;
mutex.Lock();
#endif
va_list ap;
va_start(ap, fmt);
#if FLEXT_SYS == FLEXT_SYS_MAX
char buf[1024]; // \TODO this is quite unsafe.....
STD::sprintf(buf,"error: ");
vsprintf(buf+7, fmt, ap);
::post(buf);
#else
fprintf(stderr, "error: ");
vfprintf(stderr, fmt, ap);
::post("");
#endif
va_end(ap);
#ifdef FLEXT_THREADS
mutex.Unlock();
#endif
}
|
